Well actually if you want the best FPS it's system, dependant, and more so than you would think.
The guys at X-plane have said that the MAC G5 gets great performance with the R9800Pro, and it outperforms comparable Windows rigs.
Grabbed from FiringSquad.
<font color=blue>from the guy that writes X-plane:
<i>
http://www.x-plane.org/
"Some people say it is not the fastest, but they are
grasping at straws based on whatever statistics they can find...
but I have run X-Plane on it and I have seen that for X-Plane, it
is the fastest. 120 fps on a NON-OPTIMIZED copy of X-Plane.
Optimizing hops us up 25% from that. How many Windows users can
get 150 fps on X-Plane? (no rendering options, 7 miles vis) Try
it. You won't. The G-5 does."</i> </font color=blue>
OpenGL is a strange Kettle of fish, nV has a history of better performance, but funny that while Q3 was tops on nV now the R9800s are showing up better than the FXs, and this also carries over to COD. Yet still the majority of performance wins do go to the nV series. However it does show that nothing is that clear cut.
It depends alot on the way the program addresses the extensions and the hardware involved and their benifits/advanatges.
- You need a licence to buy a gun, but they'll sell anyone a stamp <i>(or internet account)</i> ! - <font color=green>RED </font color=green> <font color=red> GREEN</font color=red> GA to SK